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Re^3: Perl Cannot Be Parsed: A Formal Proof

by perlfan (Curate)
on Jan 28, 2008 at 03:47 UTC ( #664621=note: print w/ replies, xml ) Need Help??


in reply to Re^2: Perl Cannot Be Parsed: A Formal Proof
in thread Perl Cannot Be Parsed: A Formal Proof

He is saying that in order to statically parse an eval block, you must know when_it_halts - or in otherwords - what it does; this is impossible with out actually running the eval block, and is clearly related to the halting problem.


Comment on Re^3: Perl Cannot Be Parsed: A Formal Proof
Re^4: Perl Cannot Be Parsed: A Formal Proof
by chromatic (Archbishop) on Jan 28, 2008 at 05:17 UTC

    If he's saying that, then he's wrong. The problem is not the existence of eval; the problem in Perl 5 is barewords and prototypes.

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